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# -------------------------------------------------------------------
# Pimcore
#
# This source file is available under two different licenses:
# - GNU General Public License version 3 (GPLv3)
# - Pimcore Commercial License (PCL)
# Full copyright and license information is available in
# LICENSE.md which is distributed with this source code.
#
# @copyright Copyright (c) Pimcore GmbH (http://www.pimcore.org)
# @license http://www.pimcore.org/license GPLv3 and PCL
# -------------------------------------------------------------------
import logging
import asyncio
from .abstract_trainer import AbstractTrainer
from .training_status import TrainingStatus
from concurrent.futures import ThreadPoolExecutor
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
class TrainingManager:
__training_task = None
__trainer: AbstractTrainer = None
async def __do_start_training(self, parameters):
logger.info('do start training')
loop = asyncio.get_running_loop()
with ThreadPoolExecutor() as pool:
await loop.run_in_executor(pool, self.__trainer.start_training, parameters)
logger.info('done')
async def start_training(self, trainer: AbstractTrainer, parameters):
logger.info('start training')
if self.__training_task is None or self.__training_task.done():
self.__trainer = trainer
self.__training_task = asyncio.create_task(self.__do_start_training(parameters))
else:
raise RuntimeError("Training already running.")
def get_task_status(self) -> TrainingStatus:
if self.__trainer is None:
return TrainingStatus()
return self.__trainer.get_status()
def stop_task(self):
if self.__training_task is not None and not self.__training_task.done() and self.__trainer is not None:
self.__trainer.get_status().abort_training("Stopping training")
#self.__training_task.cancel()
else:
raise RuntimeError("No task running.")
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